The 22-year-old daughter of musician Phil Collins told Hello! magazine, "It was Aprils Fools' Day, so when I got the phone call I thought that someone was playing a prank on me. I was quite angry and thought, 'If this is someone's idea of a joke, it's not funny'.

"But then when I realized it was true, I burst into tears and started screaming. It's the role of a lifetime."

Collins appears opposite Julia Roberts in Mirror Mirror, which opens on March 30 in the US and on April 2 in the UK.